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HALOWERK marktwerk Gas Cost Estimator
x402
HALOWERK marktwerk Gas Cost Estimator is a paid API for AI agents from markt.netzhandwerker.de, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Estimates the current gas cost in USD for a specific transaction type (transfer, ERC-20, or swap) on Ethereum or Base.
Price / call$0.003
Success—
StatusUnknown
How this service works
HALOWERK marktwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
Output
Returns a current gas cost estimate for the specified transaction type on the chosen chain, expressed in a USD-denominated figure, reflecting live network conditions.
Example use cases
Pre-trade cost check for DeFi swap
“Before I execute this token swap on Ethereum, can you tell me what the current gas fee estimate is so I know if it's worth doing right now?”
Compare fees across chains
“I'm about to send an ERC-20 token transfer — what are the current estimated gas costs on Ethereum versus Base so I can pick the cheaper chain?”
Budget check for wallet automation
“My bot is about to do a batch of ETH transfers on Base — what's the current gas cost estimate for a plain transfer so I can decide if the network is cheap enough?”
Technical details
Endpoint
POSThttps://markt.netzhandwerker.de/gasWhen to prefer
Use this endpoint when you need a quick, paid, on-demand gas cost estimate for a specific transaction type (simple transfer, ERC-20, or swap) on either Ethereum or Base, and you want a USD-denominated figure without running your own RPC node or gas oracle. Prefer this over free public gas trackers when you need programmatic access via a pay-per-call model with no API key setup.
Side effects
- Invalid chain value (not 'ethereum' or 'base') returns a validation error
- Invalid action value (not 'transfer', 'erc20', or 'swap') returns a validation error
- Payment failure (x402 USDC payment not received) blocks the response
- Network congestion or RPC unavailability may return stale or unavailable estimates
- Upstream gas oracle downtime may cause errors or null responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | Chain to measure. ethereum or base. |
| action | string | Which transaction the cost estimate is for: transfer, erc20 or swap. |
Tags
x402
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